Door-check.



A. WENDLINGER.

DOOR CHECK.

APPLICATION FILED JUNE 9, 1909.

m 6 w 1 m 0 m ATTORNEY unirnn STATES rnrnnr onnicn.

'HRTHUIWWENDLINGER, F RICHMOND, VIRGINIA.

i= DOOR-CHECK.

-. Application filed June .9,"

-=door and designed to prevent noise or vibration. as the door is closed.

i The present invention is applicable to any and alhkinds ofclosures,. doors, windows orthe like, and will be found especially.

beneficial inhospitals, sanatoriums, sleeping cars 111df,0tl181 places where the noise and jar occasioned by the shutting of. a door or,

window is annoying to the patient or to 1 the party occupying the room or apartment,

in which the door is located. Heretofore,

it has been proposed to-lessen :or prevent the noise and vibration by variousmeans which,

so far aslam aware, have not gone into pra'ctical use for the reason-that they were not well adapted for the purpose. The:

elastic bufl er was liable to injury, and, if

' loosely and removably -inserted within its opening in the jamb or other part,- was liable to be pulled out and become lost,

here a'metallic case has been employed for.-

enveloping the buifer, the same has been fixed and not movable with the bulfer and did not serve as a means to prevent cutting or wearing away of the buiier in use.

The. primary object of my invention is to provide simple and efiicient means for overcoming the above objections and for 4 insuring a positive doing away withthe noise and jar or vibration and ermitting of a tight closingof the door or wlndow and insuring against pulling outof the buffer by the suction caused by the opening of t5 the door.

Other objects and advantages of the invention will hereinafter appear and the novel featuresthereof will be particularly pointed out by the appended claims. F0 The invention, in some of its preferred forms, is clearly illustrated in the accompanying drawings, which, with the numerals of reference marked thereon, form a part of this specification, and in which- Figure 1 is a detail in elevation showing a portion of a door frame or amb with one Specification of letters Eatent. PatQHtGG-EIaK 22, 19116)),

1909. Serial No. 501,116.

of my improvedbufiersapplied. .Fig. 2 is an enlarged sectional detail showinga porbeing in its closed position against the buffer.l;.Fig. 3 shows, in longitudinal section and end elevation, one of the buffers. ,Fig. l shows, in side elevation and end view, another form of buffer. Fig. 5 shows, in .longitudinal section and end elevation, the form of buffer seenIin Fig. 4, with a metallic protector.

' Like numerals of. reference indicate-like parts throughout the several views.

Referring to the drawings, 1 designates a portion of-ia door frame or jamb and-2 a section of :a door; Inthe r'rabbeU-S of-the frameor jamb-,-I boreor otherwise form one or HlOI'Q- openingsA, generally one near. the topoand one near the bottom, and, in some instances, one or more intermediate these points; Ashowing of one-, howeveniinthis -'instance, is deemed sufiicienteto give a clear understanding of the invention. Into these openings, -I place elasticubufiers, preferably of'a'good. quality of india rubber. TtILzFig. 2, the holeor opening 4c is=shown as counter- Hsunk at its: outer end, as seen at 5', and in bulfer 7, :which is'provided with an enlarged or head portion 8%. fitted :to the countersink, the. bottom" wall of which. may or. may not 'be beveled. If beveled, as shown insFig. 2, the coacting portion ofthe buifen-ithat' is, that at the junction of its shank iand' head, will be correspondingly beveled, as shown at 9. length of the buffer so as to allow ofendwise compression, and, in order to allow the buffer to expand laterally at its head portion and further to permit of the suflicient compression thereof to allow of a tight closing of the door, I form the outer face of the head with a concavity, as seen at 10, which permits of the head portion being com pressed practically Within its countersink, althou h normally projecting beyond the outer ace of the rabbet, and, in order to allow of the escape of the air that maybe confined within this concavity and prevent any possibility of the suction withdrawin the buffer, I provide the outer rim 11 with a plurality of notches or the like 12 which readily allow of the escape of the air confined within [the concavity when the door is closed so that, when the door is opened,

there will be no suction between the contion of theiframennd the door, the latter -:this is removablyinserted the shankof the The opening is of greater depth than the 4 is required in order to insure a tight closure caved head of the bufi'er and the contacting t avoid any possibility of contact of the projamb, and, the protector 16 coming in conbe noted that the convex outer face of the portion of the door.

It will be readily understood that, when the door is closed, the buffer prevents contact of wood with wood, the door closing against the outer face of the bufier and all noise and jar or vibration are obviated. The bufier is free to be compressed longitudinally and laterally within its opening, be ing unconfined and hence less compression between the door and its jamb or frame.

In Fig. 4, I have shown another form of buffer constructed to allow of longitudinal and lateral compression or expansion. In this form, thebuifer 13 is of india rubber or the like and has a convex head portion 14 to prevent suction between the same and the door, and intermediate its ends it is circumferentiall y reduced in diameter, as seen at 15. This is inserted within a correspondingly shaped opening in the jamb and is free to move bodily therein. When the door is brought in contact therewith, it is compressed endwise within its opening, this movement being permitted by reason of the reduced or cut-away intermediate portion, and, when the pressure is removed from the door, the buffer expands and assumes its normal position. In order to prevent cutting or scraping of the buffer by contact with the walls of the opening in the jamb in which itis located, I sometimes provide the buffer 13 with a protector 16, preferably of metal, which embraces the portion 17 of said buffer and is confined thereabout in any suitable manner, as by crimping or pressing inward its opposite edges, as seen at 18 in Fig. 5. -This buffer, like the others, is free to move bodily within its -opening in the tact with the walls of the opening, prevents. all'liabi'lity of injury to the bufier. It is to buffer projects beyond the protector so as to tector with the door.

The advantages of the construction hereinbefore described will be appreciated especially by those who have been annoyed while sick by the noise and vibration caused by the slamming or closing of the door not provided with means for preventing the same.

\Vhat I claim as new is 1. An elastic buffer bodily movable within an opening in a frame and free to be compressed longitudinally and laterally and having a shank and an enlarged head portion with concaved outer face.

2. An elastic bnfl'er having a shank and an enlarged head portion with concaved outer face and a marginal rim having passages connnnnicating with said concavity.

3. The combination with a door and its frame. of a countersunk opening in the rabbet of the frame, and an elastic buffer having a shank received within said-opening and an enlarged head receivable in the countersink. said shank and head being freely bodily movable in said opening and countersink for expansion longitudinally and laterally.

4. The combination with a door and its frame, of a countersunk opening in the rabbet of the frame, and an elastic buffer having a shank received within said opening and an enlarged head receivable in the coun tersink, said head having a concavity in its outer face and a surrounding rim having passages for the escape of the air from said concavity.

Signed by me at Washington, D. (1, this 9 day of June 1909.

' ARTHUR WENDLINGER. 

